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Finding the Fourth Proportional to 167.33, 231.02 and 112.06

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Solution

The fourth proportional to 167.33, 231.02 and 112.06 is: 154.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.33 : 231.02 = 112.06 : x
  2. Step 2: Convert to fraction form
    167.33/231.02 = 112.06/x
  3. Step 3: Cross multiply
    167.33x = 231.02 × 112.06
  4. Step 4: Simplify right side
    167.33x = 25,888.10
  5. Step 5: Solve for x
    x = 25,888.10/167.33
  6. Step 6: Final answer
    x = 154.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.